diff --git a/.github/workflows/test-arealite.yml b/.github/workflows/test-arealite.yml
new file mode 100644
index 000000000..41ae60b8f
--- /dev/null
+++ b/.github/workflows/test-arealite.yml
@@ -0,0 +1,50 @@
+name: Test AReaLite
+
+on:
+  push:
+    paths:
+      - .github/workflows/test-arealite.yml
+      - arealite/**
+      - ci/**
+  workflow_dispatch:
+
+jobs:
+  test-arealite:
+    runs-on: ubuntu-latest
+    concurrency:
+      group: test-arealite
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: appleboy/ssh-action@v1
+        env:
+          GIT_REPO_URL: https://github.bibk.top/${{ github.repository }}
+          GIT_COMMIT_SHA: ${{ github.sha }}
+        with:
+          host: ${{ secrets.CI_NODE_ADDR }}
+          username: ${{ secrets.CI_NODE_USER }}
+          key: ${{ secrets.REMOTE_SSH_KEY }}
+          envs: GIT_REPO_URL,GIT_COMMIT_SHA
+          script_path: ci/clone_repo.sh
+
+      - uses: appleboy/ssh-action@v1
+        env:
+          GIT_COMMIT_SHA: ${{ github.sha }}
+        with:
+          host: ${{ secrets.CI_NODE_ADDR }}
+          username: ${{ secrets.CI_NODE_USER }}
+          key: ${{ secrets.REMOTE_SSH_KEY }}
+          command_timeout: 2h
+          envs: GIT_COMMIT_SHA
+          script_path: ci/build_env_image.sh
+
+      - uses: appleboy/ssh-action@v1
+        env:
+          GIT_COMMIT_SHA: ${{ github.sha }}
+        with:
+          host: ${{ secrets.CI_NODE_ADDR }}
+          username: ${{ secrets.CI_NODE_USER }}
+          key: ${{ secrets.REMOTE_SSH_KEY }}
+          command_timeout: 1h
+          envs: GIT_COMMIT_SHA
+          script_path: ci/test_arealite.sh
diff --git a/arealite/tests/test_engine.py b/arealite/tests/test_engine.py
index f7f53023b..03b1559b8 100644
--- a/arealite/tests/test_engine.py
+++ b/arealite/tests/test_engine.py
@@ -23,7 +23,7 @@
 from realhf.impl.model.utils.padding import unpad_input
 
 VOCAB_SIZE = 100
-MODEL_PATH = "/storage/openpsi/models/Qwen__Qwen3-1.7B/"
+MODEL_PATH = "Qwen/Qwen2-0.5B"
 
 
 @pytest.fixture(scope="module")
diff --git a/arealite/tests/test_grpo.py b/arealite/tests/test_grpo.py
index 5bf5c6754..24881a2a2 100644
--- a/arealite/tests/test_grpo.py
+++ b/arealite/tests/test_grpo.py
@@ -22,7 +22,7 @@
 
 EXPR_NAME = "test_grpo"
 TRIAL_NAME = "test_grpo"
-MODEL_PATH = "/storage/openpsi/models/Qwen__Qwen3-1.7B/"
+MODEL_PATH = "Qwen/Qwen2-0.5B"
 
 
 @pytest.fixture(scope="module")
diff --git a/arealite/tests/test_rollout.py b/arealite/tests/test_rollout.py
index 858f18f44..3f6bd43fb 100644
--- a/arealite/tests/test_rollout.py
+++ b/arealite/tests/test_rollout.py
@@ -27,7 +27,7 @@
 
 EXPR_NAME = "test_rollout"
 TRIAL_NAME = "test_rollout"
-MODEL_PATH = "/storage/openpsi/models/Qwen__Qwen3-1.7B/"
+MODEL_PATH = "Qwen/Qwen2-0.5B"
 
 
 @pytest.fixture(scope="module")
diff --git a/arealite/tests/test_rollout_controller.py b/arealite/tests/test_rollout_controller.py
index aadabdaf7..636f34933 100644
--- a/arealite/tests/test_rollout_controller.py
+++ b/arealite/tests/test_rollout_controller.py
@@ -22,7 +22,7 @@
 
 EXPR_NAME = "test_rollout_controller"
 TRIAL_NAME = "test_rollout_controller"
-MODEL_PATH = "/storage/openpsi/models/Qwen__Qwen3-1.7B/"
+MODEL_PATH = "Qwen/Qwen2-0.5B"
 
 
 @pytest.fixture(scope="module")
diff --git a/arealite/tests/test_sft.py b/arealite/tests/test_sft.py
index bf605e4bc..eaa81cd52 100644
--- a/arealite/tests/test_sft.py
+++ b/arealite/tests/test_sft.py
@@ -60,7 +60,7 @@ def test_sft():
     )
 
     engine_config = EngineConfig(
-        path="/storage/openpsi/models/Qwen__Qwen3-1.7B/",
+        path="Qwen/Qwen2-0.5B",
         gradient_checkpointing=False,
         optimizer=OptimizerConfig(),
         backend=EngineBackendConfig(type="hf"),
diff --git a/arealite/tests/test_sglang_client.py b/arealite/tests/test_sglang_client.py
index ab61caf29..db037c1d0 100644
--- a/arealite/tests/test_sglang_client.py
+++ b/arealite/tests/test_sglang_client.py
@@ -23,7 +23,7 @@
 
 EXPR_NAME = "test_sglang_client"
 TRIAL_NAME = "test_sglang_client"
-MODEL_PATH = "/storage/openpsi/models/Qwen__Qwen3-1.7B/"
+MODEL_PATH = "Qwen/Qwen2-0.5B"
 
 
 @pytest.fixture(scope="module")
diff --git a/ci/build_env_image.sh b/ci/build_env_image.sh
new file mode 100644
index 000000000..383984592
--- /dev/null
+++ b/ci/build_env_image.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+set -e
+
+GIT_COMMIT_SHA=${GIT_COMMIT_SHA:?"GIT_COMMIT_SHA is not set"}
+
+echo "GIT_COMMIT_SHA: $GIT_COMMIT_SHA"
+
+# If there is already an image named areal-env, skip.
+if docker images --format '{{.Repository}}:{{.Tag}}' | grep -q 'areal-env:latest'; then
+    echo "Image areal-env already exists, skipping build."
+    exit 0
+fi
+
+RUN_ID="areal-$GIT_COMMIT_SHA"
+cd "/tmp/$RUN_ID"
+
+if docker ps -a --format '{{.Names}}' | grep -q "$RUN_ID"; then
+    docker rm -f $RUN_ID
+fi
+
+docker run \
+    --name $RUN_ID \
+    --gpus all \
+    --shm-size=8g \
+    -v $(pwd):/workspace \
+    -w /workspace \
+    nvcr.io/nvidia/pytorch:25.01-py3 \
+    bash -c "
+        python -m pip install --upgrade pip
+        pip config set global.index-url https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple
+        pip config unset global.extra-index-url
+        bash examples/env/scripts/setup-pip-deps.sh
+        pip uninstall -y transformer-engine
+        mv ./sglang /sglang
+    " || { docker rm -f $RUN_ID; exit 1; }
+
+docker commit $RUN_ID areal-env:latest
+docker rm -f $RUN_ID
diff --git a/ci/clone_repo.sh b/ci/clone_repo.sh
new file mode 100644
index 000000000..c4448822e
--- /dev/null
+++ b/ci/clone_repo.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+set -e
+
+GIT_REPO_URL=${GIT_REPO_URL:?"GIT_REPO_URL is not set"}
+GIT_COMMIT_SHA=${GIT_COMMIT_SHA:?"GIT_COMMIT_SHA is not set"}
+
+echo "GIT_REPO_URL: $GIT_REPO_URL"
+echo "GIT_COMMIT_SHA: $GIT_COMMIT_SHA"
+
+RUN_ID="areal-$GIT_COMMIT_SHA"
+rm -rf "/tmp/$RUN_ID"
+mkdir -p "/tmp/$RUN_ID"
+cd "/tmp/$RUN_ID"
+
+git init
+git remote add origin "$GIT_REPO_URL"
+git fetch --depth 1 origin "$GIT_COMMIT_SHA"
+git checkout FETCH_HEAD
diff --git a/ci/test_arealite.sh b/ci/test_arealite.sh
new file mode 100644
index 000000000..79734eade
--- /dev/null
+++ b/ci/test_arealite.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+set -e
+
+GIT_COMMIT_SHA=${GIT_COMMIT_SHA:?"GIT_COMMIT_SHA is not set"}
+
+echo "GIT_COMMIT_SHA: $GIT_COMMIT_SHA"
+
+RUN_ID="areal-$GIT_COMMIT_SHA"
+cd "/tmp/$RUN_ID"
+
+if docker ps -a --format '{{.Names}}' | grep -q "$RUN_ID"; then
+    docker rm -f $RUN_ID
+fi
+
+docker run \
+    --name $RUN_ID \
+    --gpus all \
+    --shm-size=8g \
+    -v $(pwd):/workspace \
+    -w /workspace \
+    areal-env:latest \
+    bash -c "
+        mv /sglang ./sglang
+        HF_ENDPOINT=https://hf-mirror.com python -m pytest -s arealite/
+    " || { docker rm -f $RUN_ID; exit 1; }
+
+docker rm -f $RUN_ID